Q. With reference to Genome Editing, consider the following statements:
1.It is a method to modify an organism’s DNA.
2.CRISPR-Cas9 is a popular tool for genome editing because it can cut DNA at any random location.
3.It can help a faster growth and enhance breeding in the fish.
Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: C
Notes:

Explanation –

Statements 1 and 3 are correct. Genome editing is a method to modify an organism’s DNA. It allows scientists to make precise changes to the DNA of various organisms, including plants, bacteria, and animals. Genome editing can help in faster growth and enhance breeding in fish. It has been used in aquaculture to improve traits such as growth rate, disease resistance, and reproductive control.

Statement 2 is incorrect. CRISPR-Cas9 is popular because it can cut DNA at specific locations, not random ones. The system uses a guide RNA to direct the Cas9 enzyme to a precise spot in the genome, ensuring targeted cuts.

Source: The Hindu

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